display 4 consecutive numbers in array

Question

Kole 2014-10-8

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编辑： Kole 2014-10-8

I have the Array a= 9 10 11 12 17 18 19 20 23 24 How can i get the code to display when the 4 indices are consecutive and when they appear. example: 9 10 11 12 and 17 18 19 20

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Answer 1

Guillaume 2014-10-8

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Strangely enough, strfind also find patterns in numeric arrays:

a = [9 10 11 12 17 18 19 20 23 24];
indices = strfind(diff(a), [1 1 1])

See also Loren's blog on the subject of finding patterns for alternative algorithms.

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Stephen23 2014-10-8

Very tidy solution.

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Answer 2

David Sanchez 2014-10-8

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在 MATLAB Online 中打开

a= [9 10 11 12 17 18 19 20 23 24];
for k=1:(length(a)-3) % k=2
    if a(k:k+3)==(a(k):a(k)+3)
        fprintf('repeition in position %g: \n',k);
        disp(a(k:k+3));
    end
end